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PSoC 4 MCU

DaHu_285096
Contributor II

I want to use an external 24Mhz crystal for the main oscillator on 4246AZI-L423 (attached to pins P7.0 and P7.1).

What settings do I need in the clocks section to use this as master clock?

Also, I want to generate a 31.25 kHz output continuously (derived from the master clock), do I just drop down a clock component and set F = 31.25Khz and attach it to a digital output pin? (I need an accuract clock for external device)

Thanks

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1 Solution
LinglingG_46
Moderator
Moderator

I have changed the project configuration, I think it can meet your requirement now.

View solution in original post

3 Replies
LinglingG_46
Moderator
Moderator

I create a simple project about the clock configuration.

Hope it can be helpful for you.

DaHu_285096
Contributor II

Thanks for the example. I note the accuracy for 31.25kHz is displaying as +/- 5%? 

I need the 31.25kHz signal around 100ppm.

I currently use a 4200 without external crystal but want to add the crystal specifically to get better accuracy on the 31.25kHz signal.

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LinglingG_46
Moderator
Moderator

I have changed the project configuration, I think it can meet your requirement now.

View solution in original post